USB Connectivity for iPhone and iPod - Most USB-enabled CD receiver models, feature USB connectivity for audio playback from popular devices like iPhone and iPod. Featuring easy-to-use user interface, iPod browsing is a breeze when searching by playlist, artist, album, song, genres or composer. Additionally, you can use advanced search functions like Reverse Browsing, Alphabet Search and Skip Search to find what you want to listen to, quickly and easily. For added versatility, App/iPod Mode disables the receiver's integrated control, enabling passengers to control the iPod manually including some selected Apps. The same USB connectivity allows users to connect USB thumb drives and external hard disk drives.